tree 738a649cbd1f201af6d398a3190c08327a1d8eda
parent 31e1a305a7beb917c12785d9cdf1a37b332571d8
author Quinn Dawkins <quinn.dawkins@gmail.com> 1716484329 -0400
committer GitHub <noreply@github.com> 1716484329 -0400
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[Codegen][GPU] Add iree_gpu.tensor_barrier op (#17478)

Because tensors have value semantics, operations on tensors (and
vectors) have the potential to freely change places with side effecting
ops like `gpu.barrier`. This adds an `iree_gpu.tensor_barrier` operation
to keep barriers as a part of the SSA chain. This has the added benefit
of automatic DCE of such barriers, and improved analyzability. In the
future we may want to allow this operation to take multiple tensors to
wait on simultaneously.